{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xade4dafa29c4e37cc93917ebc27f4f7028d44057b139af02bcb736075d4bc122",
    "signature": "0x602f6fa708dc859c8de3f53b81698935b312bf77f3dece6ecd961c07b4b0591c2708c14cc531b070d086dd4cb63911ec2e8ef1e3849699a15bae514411be15c91c",
    "signer": "0xB874f4621c8c59121feacEaD49e379Baa95ebC5b",
    "userId": "480497000"
  }
}